Impressing and perforating pliers.



PATENT'ED AUG. 16, 1904.

. J. soxm. IMPRESSING AND PERPORATING PLIERS.

APPLICATION FILED MAR. 28, 1904.

K0 MODEL.

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Patented August 16, 1904".

P TE T GrFicE.

JOSEPH SOHN, or BERLIN, GERMANY.

IIVIPRESSING AND PERFORATING PLIERS.

SPECIFICATION forming part of Letters Patent No. 767,603, dated A g st 16, 1904.

Application filed March 28, 1904. Serial No. 200,353. (N0 0de T 0 all whom, it may concern:

Be it known that I, JOSEPH SOHN, acitizen of the United States of America, residing at Berlin, N, Germany, have invented certain new and useful Improvements in Impressing and Perforating Pliers, of which the following is a specification.

This invention relates to improvements in that kind of impressing and perforating pliers or punches in which the cutter acts after the impression has been made on the paper, cardboard, or the like to be punched, the punch and cutter being rectilinearly moved in a direction perpendicular to the die or matrix.

The improved pliers difier from the tools of a similar kind hitherto known by the fact that the matrix and the cutter are rectilinearly guided on the same jaw to which-the typeor cameo and the bed-plate are fixed.

German Patent No. 85,315 describes holing and stamping pliers in which the matrix and the cutter are rectilinearly movable on the jaw which carries the bed-plate and the type or cameo; but the matrix and the cutter are fixed to a slide common to both, so that they can only be operated simultaneously and not successively. Over tools which first produce the impression and then cut, the matrix and the cutter being on the jaw opposite the bedplate, (German Patent No. 46,533,) the arrangement of all the said parts on the same jaw has the advantage that the action of the die cannot be interfered with by the interposition of a foreign body or a finger with a ring thereon, as is liable to occur if the die and cutter are not on the same jaw as the bed-plate.

In the formof construction illustrated the improved punching-pliers are also provided with means for regulating in a simple manner the interval of time to elapse between the making of the impression and the cutting. The punch can thus be easily adjusted to different requirements, since the said interval of time can be much shorter when punching thin paper than when punching thick card- The said form of construction is illus trated in the annexed drawings, in which Figure 1 represents the open pliers, and Fig.

2 the closed pliers, mostly in longitudinal sec- 5 tion. Fig. 3 is a cross-section on the line A B of Fig. 1, and Fig. 4. represents the same ,tool with a slightly-modified cutter.

The exchangeable type a are arranged in the known manner in the head-piece 7) of the aw 0, but the matrlx m is not arranged on the opposite jaw (Z or on an intermediate I th1rd jaw, as in some punching-pliers, but in a rectilinear aperture in a part I) integral with the said head-piece b. The card or the .like to be punched is introduced into a non variable space between the parts 5 and b. A link g connects the jaw (Z, which acts in the knownmanner as a single-armed lever, with the rectilinearly-guided matrix m in the part Somewhat farther to the rear the holecutter Z is rectilinearly guided in a vertical aperture of the part b, the said cutter being when the pliers are open pushed upward by a spring f, which 1s either wound on the cutter or arrangedin a suitable recess at the side of the latter. In the latter case the cutter is preferably provided with a projection against which the saidspring bears, or the upper end of the cutter is pivotally connected with the slotted end'of a short lever 70, actuated by the spring, as illustrated. The cutter Z can also be provided with a spherical head Z,

which engages with an elongated recess in thelever /L, as shown in Fig. I. If the spring f is arranged in the manner illustrated, it is preferable to provide the lever it described I in order to prevent the catching of the cutter in its guide.

Behind the link 9 there is arranged on the inside of the press-lever (Z a projection 4;, adapted to be adjusted in such a manner that it comes into contact with the head of the cutter Z, or, as illustrated, with the lever it at an earlier or later moment, so as to depress the said cutter. The drawings show a preferred form of this projection, in which the latter is in the form of a screw adapted to be screwed into the press-lever (Z.

In the form of construction illustrated the link g is connected with the lever (Z by means of a pin 5, screw-threaded in parts and provided with a head at the side of the tool to allow of easily removing the matrix m from its rectilinear guide in order to replace the elastic cushion thereof. To prevent the ejection of the cutter l by the spring f while this is being done, owing to the removal of the projection o from the lever /t, the latter is preferably provided with an extension lt, Fig. 4, beyond its fulcrum to limit the upward movement of the said lever by the spring f.

I declare that what I claim is- 1. lmpressing and perforating pliers comprising in combination a jaw having an ex tended head-piece arranged to provide a space for reception of the material to be acted upon, impression means carried by said jaw, a removable matrix rectilinearl'y guided in said head-piece opposite said impression means, a spring-pressed cutter also rectilinearly guided in said head-piece to the rear of the matrix, a pressure-lever pivoted to the aforesaid jaw, means pivotally connecting the matrix with said pressure-lever and detachable and adjustable means in conjunction with said pressure-lever for operating the matrix and cutter respectively at diii'erent relative time intervals, substantially as described.

2. impressing and perforating pliers comprising in combination a jaw provided with an extended head-piece having a rectilinear aperture and arranged to provide a space for reception of the material to ,be acted upon, impression means carried by said jaw, a removable matrix adapted to be guided in said aperture opposite said impression means, a spring-pressed cutter rectilinearly guided in said head-piece, a pressure-lever pivoted to the aforesaid jaw, means pivotally connecting the matrix to said pressure-lever and adjustable means on the latter for operating or depressing the cutter at different time intervals relatively to the matrix, substantially as described.

3. Impressing and perforating pliers comprising in combination a jaw provided with an'extended head-piece having a rectilinear aperture and arranged to provide 'a space for reception of the material to be acted upon, impression means carried by said jaw, a removable matrix adapted to be guided in said aperture opposite said impression means, a cutter rectilinearly guided in said head-piece to the rear of the matrix, a pivoted lever connectcd to said cutter, a spring acting on said lever, a pressure-lever pivoted to the aforesaid jaw, means pivotally connecting the matrix with said pressure-lever, and adjustable means on the latter for operating or depressing the aforesaid lever and consequently the cutter at different time intervals relatively to the matrix, substantially as described.

4:. Impressing and perforating pliers comprising in combination a jaw provided with an extended head-piece having a rectilinear aperture and arranged to provide a space for reception of the material to be acted upon, impression means carried by said jaw, a matrix adapted to be guided in said aperture opposite said impression means, a cutter rectilinearly guided in said head-piece to the rear of the matrix, a pivoted lever connected to said cutter, a spring acting on said lever, a pressure-lever pivoted to the aforesaid jaw, a link connecting the matrix with the pressurelever, a removable screw-threaded pin connecting said link with the pressure-lever and adjustable means on the latter for operating or depressing the aforesaid lever and consequently the cutter at different time intervals relatively to the matrix, substantially as described.

ln witness whereof Ihave signed this specification in the presence of two witnesses.

JOSEPH SOHN.

WVitnesses:

l/VOLDEMAR HAUrT, HENRY HAsrisR. 

